This does not mean that all Bitcoin will immediately go on sale. Many of the MtGox "victims" are already experienced Bitcoiners, and they certainly know that there is a possibility of a large dump due to mass sales, so I believe that many will be restrained and possibly cash out a smaller part.
There is no parallel with what the German government did, which insisted on selling, regardless of waiting for a price correction.
Not all but some or many of them will sell and this creates panic in newbies in the market.
With 'victims' of Mt.Gox who actually have been continuing their 'jobs' in Bitcoin market many years after the Mt.Gox accident, they are very experienced now and they know that bitcoin they receive from Mt.Gox compensation is very big gift that can turn to be fortune, if they hold it. With those people, they will not sell immediately after receiving payments from Mt.Gox.
With 'victims' of Mt.Gox who left the market many years ago, and did not care about it recent years, they are possible sellers after receiving payments.
It's not easy to guess that selling pressure is big or small because we don't know how 'victims' will do?
Like me, if I lost 1
BTC to Mt.Gox accident about 10 years ago and now I receive 1
BTC from them, I would say, thanks God, Mt.Gox saved me and gave me a fortune. It's an example, I don't know how much Mt.Gox pay to 'victims' from what they lost years ago.